BBC Earth HD

'S1/E1 - Oceans'. Documentary about the oceans and how science is helping combat the impact of climate change.

'S2/E1'. The Big Cats 24/7 team is returning to the Okavango Delta to catch up with old friends.

'S2/E2'. Intruder males close in on the Pride's young cubs and the dominant males have vanished.

'S8/E6'. Michael Portillo is transported 150 years back in time to the tiny Alpine village home of Switzerland's most famous child, Heidi. In Davos, he visits a former sanatorium.

'S8/E7'. In Zurich, Michael Portillo has a brush with the absurd in the anarchic paintings and artistic haunts of the Dadaists, a group of artists who found refuge in the city during the First World War.

'S8/E8'. Aboard the Golden Pass Express, Michael Portillo wends his way in style down steep mountainsides from Interlaken to the Swiss Riviera. In Lausanne, he contends with a knife-wielding robotic arm.

'S8/E9'. Michael Portillo's visits Brest, home to France's oceanographic fleet. His journey continues to Rennes, capital of Brittany, and finally, climbing the steps of Mont-Saint-Michel.

'S10/E11 - Lincolnshire'. Ben heads to northern England and stays with host Paul in Lincolnshire onboard his 30-year-old converted military truck. He discovers why Paul traded living in a house for life on the road.

'S10/E12 - Sri Lanka'. Ben stays with Naveen and Anke who have made their home in the Sri Lanka's highlands. He uncovers why they swapped one of the biggest cities in the world for a simple off-grid existence miles from civilisation.

'S11/E1 - Norway'. Ben heads to an island at the edge of the world on Norway's arctic coastline, and meets Elena, a former Middle East peacekeeper who has created her dream home here.

'S2/E2'. The four teams must leave the beach town of Canoa Quebrada and race through the Northeast region of Brazil to their second checkpoint.

'S1/E3 - Solar Vehicles'. Examines how engineers are creating emission-free cars and boats powered directly by the sun. Though electric vehicles are thriving, many still rely on electricity from coal and gas.

'S1/E1 - Land of the Giants - Part 1'. Braving unpredictable seas and crashing waves, Cyril and his team battle giant fish from shore before heading out to sea in an inflatable boat for a final showdown with a giant blacktip shark.

'S1/E1'. In 113 B.C., the Roman Republic faces an unprecedented existential crisis when a massive barbarian migration, led by the Cimbri and Teutones, sweeps down from the north.

'S11/E1 - Norway'. Ben heads to an island at the edge of the world on Norway's arctic coastline, and meets Elena, a former Middle East peacekeeper who has created her dream home here.

'S2/E2'. The four teams must leave the beach town of Canoa Quebrada and race through the Northeast region of Brazil to their second checkpoint.